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- 3Rankin, Robert
- 1Blake, J. Bernard
- 1Chen, Xing-Ran
- 1Degeling, Alex W.
- 1Forsyth, Colin
- 1Frey, Harald U.
Charged particle behavior in the growth and damping stages of ultralow frequency waves: Theory and Van Allen Probes observationsDownload
Ultralow frequency (ULF) electromagnetic waves in Earth's magnetosphere can accelerate charged particles via a process called drift resonance. In the conventional drift resonance theory, a default assumption is that the wave growth rate is time independent, positive, and extremely small. However,...
In this paper, we show that periodic auroral arc structures are seen at the location of one particular auroral substorm onset for the 15 min preceding onset, suggesting that field line resonances should be considered a strong candidate for triggering substorm onset. Irrespective of whether this...
Using a compressible, three-dimensional resistive monohydrodynamic (MHD) computer simulation code, we examine the evolution of standing wave field line resonances (FLRs) in the nightside of the Earth's magnetosphere. The MHD code that is used allows for a full nonlinear description and enables us...